Dev tools · alternatives · 2026

24 alternatives to Chaos Sumo
Smart Object Storage - S3 with intelligence
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Chaos Sumo launched in 2017; newer entries below may have overtaken it.
- 1

- 2

We started CallFS after yet another late-night “why did the uploads vanish?” incident. Our small team had stitched together rsync, a fragile NFS mount, and an S3 bucket—none of it observable, all of it waiting to bite us. So we wrote a single-process file service in Go that: • Speaks the S3 API (so existing tooling works). • Stores hot data on local disks for speed; cold data can sit in any S3-compatible bucket. • Exposes Prometheus metrics and JSON logs by default, because “what happened?” shouldn’t be guesswork. • Ships as a ~25 MB static binary—no external deps, MIT license. Today it’s…
2025 · github.com · its alternatives →
- 3

Ultra-high performance distributed storage system in the AI era. Powered by Fractal ART engine, Rust-native, io_uring, with multi-protocol (S3 object storage, POSIX FS, ...) - fractalbits-labs/fractalbits
Dec 2025 · github.com · its alternatives →
- 4
Datomic▲73Distributed immutable transactional database for the cloud
2014 · datomic.com · its alternatives →
- 5

- 6

- 7

Disclaimer it is a heavily AI assisted project. The goal was not to be the most performative but the kind that's easier to learn from. I wanted to share this in case there are people who had the same idea or wanted to see something like this.
Jun 2026 · github.com · its alternatives →
- 8

Simple Object Storage (I wish I could call it Steve's Simple Storage, or S3 ;) - skx/sos
2016 · github.com · its alternatives →
- 9
Stackness▲92Show your stack! The social home for your dev tools
Sep 2026 · stackness.dev · its alternatives →
- 10

- 11

ZeroFS serves S3-compatible buckets as POSIX filesystems over NFS and 9P, or as raw block devices over NBD. Data is compressed and encrypted before upload.
Jul 2026 · zerofs.net · its alternatives →
- 12

A faster Firebase with an open source core
2017 · deepstreamhub.com · its alternatives →
- 13

Hi HN, I'm Emilie, I have a literature background (which explains the well-written documentation!) and I've been learning Rust and distributed systems by building minikv over the past few months. It recently got featured in Programmez! magazine: https://www.programmez.com/actualites/minikv-un-key-value-st... minikv is an open-source, distributed storage engine built for learning, experimentation, and self-hosted setups. It combines a strongly-consistent key-value database (Raft), S3-compatible object storage, and basic multi-tenancy. Features/highlights: - Raft…
Feb 2026 · github.com · its alternatives →
- 14

- 15

High performance, AI-native objectstore with S3 API included
Nov 2025 · worka.ai · its alternatives →
- 16

- 17

- 18
KORE.io▲88A fast SPDY capable web server for web development in C
2015 · kore.io · its alternatives →
- 19
Leanplum▲36Fully-integrated optimization solution for mobile apps
2014 · clevertap.com · its alternatives →
- 20

2020 · github.com · its alternatives →
- 21

S3-compatible object storage, forked from MinIO and maintained by the Pigsty community: versioned releases, signed packages, the full web console, and security fixes with public advisories.
Aug 2026 · silo.pgsty.com · its alternatives →
- 22

Helping Developers Solve Complex Data Problems At Scale
2016 · rackspace.com · its alternatives →
- 23

- 24

MinIO is a high-performance, S3 compatible object storage. - MinIO
2015 · github.com · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →